Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

5
3
2
9
1
8
       
      6
7      
       
      6
7      
4
1
4
9
3
6
7
8
2
5
7
6
8
5
   2   
4      
       
   2   
4      
       
1
9
3
2
1  2  3
4  5  6
7  8  9
7
1
4
9
3
8
5
9
5
4
2
7
3
2
1
6
3
1
6
8
2
5
9
7
   2   
4      
       
8
2
3
4
9
6
7
5
1
4
9
2
5
3
1
6
8
2
6
5
1
2
8
7
4
3
9

 

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